CVE-2026-112404

Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow's TIFF tile and RGBA decode paths can read beyond row data produced by libtiff. In _decodeTile and the RGBA unpacker path, when Pillow and libtiff interpret duplicated PhotometricInterpretation or BitsPerSample tags differently, Pillow does not verify that the required input row fits inside the row libtiff produced, while the strip path has this validation. Loading pixels from such a crafted TIFF can expose adjacent heap data in output pixels or crash the process. This issue is fixed in version 13.0.0.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-126"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112404.json"
}

References

Affected packages

Git / github.com/python-pillow/pillow

Affected ranges

Type

GIT

Repo

https://github.com/python-pillow/pillow

Events

Introduced

fcc42e0d344146ee9d265d1f43c094ce5a0ec4cf

Fixed

293218ad059d994baf1777d882911bed6a49704a

Fixed

1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce

Database specific

Show details

{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "8.1.0"
                },
                {
                    "fixed": "13.0.0"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "13.0.0",
            "range": [
                {
                    "fixed": "293218ad059d994baf1777d882911bed6a49704a"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

10.*

10.0.0

10.1.0

10.2.0

10.3.0

10.4.0

11.*

11.0.0

11.1.0

11.2.1

11.3.0

12.*

12.0.0

12.1.0

12.2.0

12.3.0

8.*

8.1.0

8.2.0

8.3.0

8.4.0

9.*

9.0.0

9.1.0

9.2.0

9.3.0

9.4.0

9.5.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-112404.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "114388406725455065577623846774106027297",
            "length": 1626
        },
        "id": "CVE-2026-112404-1509fd25",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/python-pillow/pillow/commit/1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce",
        "target": {
            "file": "src/libImaging/TiffDecode.c",
            "function": "_decodeTile"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "109318718624272006597121147684997697983",
            "length": 1509
        },
        "id": "CVE-2026-112404-2db35bd2",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/python-pillow/pillow/commit/1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce",
        "target": {
            "file": "src/libImaging/TiffDecode.c",
            "function": "_decodeStrip"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
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                "290418670345622815474836002354933328779"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-112404-f266896d",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/python-pillow/pillow/commit/1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce",
        "target": {
            "file": "src/libImaging/TiffDecode.c"
        }
    }
]

vanir_signatures_modified

"2026-10-30T07:15:03Z"